<template>
  <div class="song-list">
    <ul>
      <li @click="selectItem(song, index)" class="item" v-for="(song, index) in songs" :key="index">
        <div class="rank" v-show="rank">
          <span :class="getRankCls(index)" v-text="getRankText(index)"></span>
        </div>
        <div class="content">
          <h2 class="name">{{song.name}}</h2>
          <p class="desc">{{getDesc(song)}}</p>
        </div>
      </li>
    </ul>
  </div>
</template>

<script type="text/ecmascript-6">
export default {
  props: {
    songs: {
      type: Array,
      default () {
        return []
      }
    },
    rank: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    selectItem (item, index) {
      this.$emit('select', item, index)
    },
    getDesc (song) {
      return `${song.singer}·${song.album}`
    },
    getRankCls (index) {
      if (index <= 2) {
        return `icon icon${index}`
      } else {
        return 'text'
      }
    },
    getRankText (index) {
      if (index > 2) {
        return index + 1
      }
    }
  }
}
</script>

<style scoped lang="less">
  @import "~common/less/variable";
  @import "~common/less/mixin";
  .song-list{
    .item{
      display: flex;
      align-items: center;
      box-sizing: border-box;
      height: 64px;
      font-size: @font-size-medium;
      .rank{
        flex: 0 0 25px;
        width: 25px;
        margin-right: 30px;
        text-align: center;
        .icon{
          display: inline-block;
          width: 25px;
          height: 24px;
          background-size: 25px 24px;
          &.icon0{
            .bg-image('~base/song-list/first');
          }
          &.icon1{
            .bg-image('~base/song-list/second');
          }
          &.icon2{
            .bg-image('~base/song-list/third');
          }
        }
        .text{
          color: @color-theme;
          font-size: @font-size-large;
        }
      }
      .content{
        flex: 1;
        line-height: 20px;
        overflow: hidden;
        .name{
          .no-wrap();
          color: @color-text;
        }
        .desc{
          .no-wrap();
          margin-top: 4px;
          color: @color-text-d;
        }
      }
    }
  }
</style>
